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UNS C92900
Category Copper Alloy
Class Cast
Type Leaded tin bronze
Designations United States: UNS C92900

Composition
ElementWeight %
Cu  84 
Sn  10 
Pb  2.5 
Ni  3.5 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8.8-8.94 25  
Poisson's Ratio 0.34 25  
Elastic Modulus (GPa) 117 25  
Tensile Strength (Mpa) 324 (324)  25  (castings: centrifugal, continuous, permanent mold, sand) 
Yield Strength (Mpa) 179 (179) 
Elongation (%) 20 (20) 
Reduction in Area (%)  
Note: Values in parentheses indicate responses to heat treatment
Hardness (HB500) 80 (80)  25  (as cast) 
Note: Value in parentheses indicates response to heat treatment.
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